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United States Patent | 5,591,137 |
Stevens | January 7, 1997 |
A valve assembly including an enlarged compression chamber having a shoulder leading to a smaller passage. A tubular seal is housed within the compression chamber and has a distal end face with an annular tongue distally projecting therefrom and interlocking with a receiving groove on the shoulder of the compression chamber. The tubular seal also has a proximal end face with an annular second tongue proximally projecting therefrom and interlocking with a second receiving groove positioned at the distal end of a tubular shaft. The tubular shaft advances within the compression chamber to compress the seal so as to selectively constrict and block the passage through the seal.
Inventors: | Stevens; Brian (Pleasant Grove, UT) |
Assignee: | Merit Medical Systems, Inc. (South Jordan, UT) |
Appl. No.: | 502753 |
Filed: | July 14, 1995 |
Current U.S. Class: | 604/296; 604/167.04; 604/534; 604/537 |
Intern'l Class: | A61M 005/00 |
Field of Search: | 604/164,167,169,249,256,264,283,246,280 251/4 |
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Product catalog of Merit Medical which illustrates and describes a Y adapter featuring an airless rotator to eliminate bubbles. 1994. Product catalog of Namic which illustrates and describes Morse.RTM. Y-Adaptors. Jan. 1994. Product catalog of Braun which illustrates and describes various Braun Y-Connectors. Sep. 1993. Product catalog of Cook Cardiology, a division of Cook Incorporated which, illustrates and describes the Large Bore Tuohy-Borst Side-Arm Adapter. 1992. |